Organic and Polymer Synthesis (Mark Hempenius)
Mark Hempenius is active in the area of organic and polymer chemistry. Research topics include organometallic polymers, stimuli responsive polymers, stimuli-responsive surface-anchored polymers, polymer architectures (block copolymers, networks) and functionalized polymers for CO2 capture. These polymers are obtained by living anionic polymerization, controlled radical polymerization methods and by step-growth processes. Organic chemistry and silane chemistry are key competences required for monomer and initiator synthesis, polymer modification and the functionalization of surfaces with responsive groups or polymer chains.
Selected references
Switching Light Transmittance by Responsive Organometallic Poly(ionic liquid)s: Control by Cross Talk of Thermal and Redox Stimuli.
Zhang, K.H.; Zhang, M.M.; Feng, X.L.; Hempenius, M.A.; Vancso, G.J.
Adv. Funct. Mater. 2017, 27, Article Number: 1702784.
Redox-controlled molecular permeability of composite-wall microcapsules.
Ma, Y.; Dong, W.-F.; Hempenius, M.A.; Möhwald, H.; Vancso, G.J.
Nature Materials 2006, 5, 724-729.
Self-assembly of Poly(ferrocenyldimethylsilane-b-methyl methacrylate) Block Copolymers in a Selective Solvent.
Korczagin, I.; Hempenius, M.A.; Fokkink, R.G.; Cohen Stuart, M.A.; Al-Hussein, M.; Bomans, P.H.H.; Frederik, P.M.; Vancso, G.J. Macromolecules 2006, 39, 2306-2315.
Organometallic Block Copolymers As Catalyst Precursors For Templated Carbon Nanotube Growth.
Hinderling, C.; Keles, Y.; Stöckli, T.; Knapp, H. F.; de los Arcos, T.; Oelhafen, P.; Korczagin, I.; Hempenius, M. A.; Vancso, G. J.; Pugin, R.; Heinzelmann, H.
Adv. Mater. 2004, 16, 876-879.
A Polystyrene-Oligothiophene-Polystyrene Triblock Copolymer.
Hempenius, M.A.; Langeveld-Voss, B.M.W.; van Haare, J.A.E.H.; Janssen, R.A.J.; Sheiko, S.S.; Spatz, J.P.; Möller, M.; Meijer, E.W.
J. Am. Chem. Soc. 1998, 120, 2798-2804.